Answer
Please see the work below.
Work Step by Step
a. $[CO(NH_3)_5Cl]Cl_2$
pentaammine chlorocobalt (III) chloride
b. $K_2[CO(H_2O)(CN)_5]$
potassium aqauapenta cyanocobaltate (III)
c. $[Fe(H_2O)_5(OH)^{+2}]$
pentaaquahydroxoiron(III) ion.